Time-dependent three-dimensional domain reverse mechanism in nucleation, growth, and breakdown of ferroelectric films

Y. P. Shi, L. Hong, A. K. Soh

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4 Citations (Scopus)

Abstract

A three-dimensional domain reversal and growth mechanism in ferroelectrics has been proposed based on domain shape evolution analysis, which can also be used to study the ferroelectric domain breakdown (FDB) phenomenon initialized by a high inhomogeneous electric field. It has been found that the aspect ratio of critical conic nucleus remained unchanged in the nucleation stage, and it abruptly decreased to an equilibrium value during the formation stage of the depolarization field, where ferroelectrics began to maintain a saturation domain radius. Consequently, the reverse domain would breakdown in a cylinder-shaped mode. Moreover, LiNbO3 ferroelectrics were found to possess the lowest critical tip voltage to cause FDB compared with other ferroelectrics.

Original languageEnglish
Article number124114
JournalJournal of Applied Physics
Volume107
Issue number12
DOIs
Publication statusPublished - 15 Jun 2010
Externally publishedYes

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